<!DOCTYPE html>
<html>
<head>
    <title></title>
</head>
<body>
<script type="text/javascript" src="jquery-1.9.1.min.js"></script>
<link rel="stylesheet" type="text/css" href="css.css">
<script type="text/javascript" src="bird.js"></script>
<div class="index">

    <div id="bg">


        <!--<div class="pipe"></div>-->
    </div>

</div>

</body>
</html>